SU996043A1

SU996043A1 - Apparatus for profiling large-size crank shafts

Info

Publication number: SU996043A1
Application number: SU813281257A
Authority: SU
Inventors: Михаил Львович Боринский; Иван Сергеевич Катков; Виктор Демьянович Вихарев
Original assignee: Научно-Исследовательский Институт Тяжелого Машиностроения Производственного Объединения "Уралмаш"
Priority date: 1981-04-22
Filing date: 1981-04-22
Publication date: 1983-02-15

Description

(54) УСТРОЙСТВО ДЛЯ ПРОФИЛИРОВАНИЯ КРУПНОГАБАРИТНЫХ КОЛЕНЧАТЫХ ВАЛОВ(54) DEVICE FOR PROFILING OF LARGE-SIZED CRANKSHAFT

1one

Изобретение относитс к обработке металлов давлением и касаетс изготовлени крупногабаритных коленчатых валов на гидравлических прессах свободной ковки.The invention relates to the processing of metals by pressure and relates to the manufacture of large-sized crankshafts on hydraulic presses for free forging.

Известно устройство дл профилировани крупногабаритных коленчатых валов, содержащее верхний и нижний бойки и вилку-рычаг 1.A device for profiling large-sized crankshafts is known, comprising upper and lower heads and fork lever 1.

Недостатками известного устройства вл ютс пониженна надежность работы и ограниченность использовани , обусловленные необходимостью использовани грузоподъемных кранов дл проведени профилировани валов, что приводит к сужению номенклатуры типоразмеров обрабатываемых валов.The disadvantages of the known device are reduced reliability of operation and limited use due to the need to use cranes for the profiling of shafts, which leads to a narrowing of the range of sizes of machined shafts.

Наиболее близким вл етс устройство дл профилировани крупногабаритных коленчатых валов, содержащее верхний и нижний бойки и вилку-рычаг, верхний боек, выполненный в виде призмы с роликом На рабочем торце, взаимодействующим с вилкой-рычагом , нижний бойк, в котором на клонные выполнены симметрично расположенные 9Носительно его вертикальной плоскости симметрии пазы под обрабатываемый вал. Верхний боек и ролик распо . 2The closest is a device for profiling large-sized crankshafts containing upper and lower heads and fork lever, upper firing pin, made in the form of a prism with a roller. At the working end interacting with the fork lever, there is a lower striker in which the symmetrical 9On its vertical plane of symmetry, the grooves under the processed shaft. Top firing pin and roller loc. 2

ложены по центральной, вертикальной оси пресса 2.lined along the central, vertical axis of the press 2.

Така конструкци может быть успешно применена на прессах с больщой открытой высотой и относительно боль щи м просве5 том между колоннами по направлению стола , например, на прессах усили ми 6000- 15000 тс.Such a design can be successfully applied on presses with a large open height and relatively large clearance between the columns in the direction of the table, for example, on presses with a force of 6000-15000 ton-force.

Однако при ограниченном просвете между колоннами и открытой высоте пресса, Q использу известное устройство, конструктивно возможно достичь лищь незначительного размера плеча рычага в начальный момент его поворота, что приводит к срезу- щейки коленчатого вала, а не развороту колена.However, with a limited clearance between the columns and the open height of the press, Q using a known device, it is structurally possible to achieve only a slight size of the lever arm at the initial moment of its turn, which leads to a cutting off of the crankshaft, and not to turn the knee.

Цель изобретени - обеспечение воз15 можности использовани устройства на прессах разного усили .The purpose of the invention is to ensure the possibility of using the device on presses of various forces.

Claims

The goal is achieved by the fact that in a device for profiling large-sized crankshafts, containing a fork lever, an upper firing pin made in the form of a prism with a roller on a pa6t than an end that can interact with a fork lever, the lower firing pin, in which are inclined, symmetrically located with respect to its vertical plane of symmetry, the grooves under the machined shaft, the roller is installed with an offset relative to the plane of symmetry of the upper striker. FIG. 1 shows a device for profiling large crankshafts, a general view; in fig. 2 is a view A of FIG. 1. The upper firing pin 1, fixed on the traverse of the press, in the working part has the form of a prism. The top of the prism is offset from the vertical axis of the press by the value of L, corresponding to the permissible eccentricity of the press. In the vertex of the prism of the upper striker on the axis 2, roller 3 is installed. The lower firing pin 4 is rigidly fixed on the press table and has two inclined grooves 5 symmetrically located relative to the axis of the press. The fork arm b is installed on the deployed knee. The device works as follows: the deployed knee outside the working area of the press installs fork 6. The crankshaft and fork lever are displaced from the lower striker to the sum of the lengths of the main cheek and the knee of the shaft being processed, while the axis of symmetry of the roller and the striker side of the fork lever coincide. When moving. the upper striker down the roller comes in contact with the side of the fork and rotates it relative to the axis of the root journal of the shaft, turning the knee. If necessary, turn the knee in the opposite direction of the upper firing pin is set in the mirror position. The present invention allows the use of a device for profiling on presses of various forces. Apparatus of the Invention A device for profiling large-sized crankshafts, comprising a fork-lever, an upper head, made in the form of a prism with a roller on the working end, capable of interacting with a fork-lever, the lower head, in which are inclined, symmetrically located relative to its vertical plane of symmetry grooves for the shaft to be machined, characterized in that in order to allow the use of different forces on the presses, the roller is mounted offset from the plane of symmetry uu upper pin. Sources of information taken into account in the examination 1. V. Kordyukov. Experience of making forgings by free forging. M., 1965 ,. with. 41

2. Certificate of author number 856641, cl. At 21 K / 08, 1979 (prototype).